arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts- Extension
.dts- Size
- 2640 bytes
- Lines
- 173
- Domain
- Architecture Layer
- Bucket
- arch/arm
- Inferred role
- Architecture Layer: configuration, schema, or hardware description
- Status
- atlas-only
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
dt-bindings/leds/common.hbcm2711-rpi-cm4.dtsibcm283x-rpi-led-deprecated.dtsibcm283x-rpi-usb-host.dtsi
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include <dt-bindings/leds/common.h>
#include "bcm2711-rpi-cm4.dtsi"
#include "bcm283x-rpi-led-deprecated.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"
/ {
model = "Raspberry Pi Compute Module 4 IO Board";
};
&ddc0 {
status = "okay";
};
&ddc1 {
status = "okay";
};
&gpio {
/*
* Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
* the official GPU firmware DT blob.
*
* Legend:
* "FOO" = GPIO line named "FOO" on the schematic
* "FOO_N" = GPIO line named "FOO" on schematic, active low
*/
gpio-line-names = "ID_SDA",
"ID_SCL",
"SDA1",
"SCL1",
"GPIO_GCLK",
"GPIO5",
"GPIO6",
"SPI_CE1_N",
"SPI_CE0_N",
"SPI_MISO",
"SPI_MOSI",
"SPI_SCLK",
"GPIO12",
"GPIO13",
/* Serial port */
"TXD1",
"RXD1",
"GPIO16",
"GPIO17",
"GPIO18",
"GPIO19",
"GPIO20",
"GPIO21",
"GPIO22",
"GPIO23",
"GPIO24",
"GPIO25",
"GPIO26",
"GPIO27",
"RGMII_MDIO",
"RGMII_MDC",
/* Used by BT module */
"CTS0",
"RTS0",
"TXD0",
"RXD0",
/* Used by Wifi */
"SD1_CLK",
"SD1_CMD",
"SD1_DATA0",
"SD1_DATA1",
"SD1_DATA2",
Annotation
- Immediate include surface: `dt-bindings/leds/common.h`, `bcm2711-rpi-cm4.dtsi`, `bcm283x-rpi-led-deprecated.dtsi`, `bcm283x-rpi-usb-host.dtsi`.
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.